<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title>Bootstrap标题</title>
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0"/>
    <link rel="stylesheet" href="css/bootstrap.min.css"/>
    <style>
        body{
            margin-left: 50px;
        }
    </style>
   </head>
<body>
<h1>我是h1</h1>
<h2>我是h2</h2>
<h3>我是h3</h3>
<h4>我是h4</h4>
<h5>我是h5</h5>
<h6>我是h6</h6>
<hr/>
<span class="h1">我是h1</span><br/>
<span class="h2">我是h2</span><br/>
<span class="h3">我是h3</span><br/>
<span class="h4">我是h4</span><br/>
<span class="h5">我是h5</span><br/>
<span class="h6">我是h6</span><br/>
<hr/>
<h1>我是h1 <small>bootstrap</small></h1>
<h2>我是h2 <small>bootstrap</small></h2>
<h3>我是h3 <small>bootstrap</small></h3>
<h4>我是h4 <small>bootstrap</small></h4>
<h5>我是h5 <small>bootstrap</small></h5>
<h6>我是h6 <small>bootstrap</small></h6>



</body>
</html>